i found a place to source high quality protein locally for reasonable price.  i have a dilemma and want some advice/opinions.  3 proteins i'm looking at:
1. pure whey isolate 90%
2. 80% protein, mix of whey isolate and water soluble protein (difference release rate?), + some kind of enzyme
3. 76% whey isolate protein, +zinc, +magnesium
maybe i'll get all 3 to try...  variety/diversity is good right?  or just get #1?